PMID- 28625614 OWN - NLM STAT- MEDLINE DCOM- 20170825 LR - 20171214 IS - 1096-0945 (Electronic) IS - 0014-4800 (Linking) VI - 103 IP - 1 DP - 2017 Aug TI - Characterization of an acquired jumping translocation involving 3q13.31-qter in a patient with de novo acute monocytic leukemia. PG - 14-25 LID - S0014-4800(17)30073-4 [pii] LID - 10.1016/j.yexmp.2017.06.002 [doi] AB - We studied an adult with de novo acute monocytic leukemia and a dismal outcome where her leukemic cells harbored an acquired rare jumping translocation (JT). We used oligo-based array CGH (oaCGH) analysis, fluorescence in situ hybridization (FISH), and 24-color karyotyping to enhance the characterization of the JT. G-banding detected a JT involving the 3q13.3-qter chromosomal segment and the recipient chromosomal regions 17p, 8q, and 15q. Each clone with JT was associated with trisomy 8. oaCGH analysis revealed an additional submicroscopic deletion in 3q13.31 as well as small subtelomeric duplications on several chromosomes. Locus-specific FISH with BAC-based probes from the 3q13.31-q13.32 region showed great heterogeneity. Telomere FISH revealed significantly reduced telomeric content in the aberrant cells with JT compared with cytogenetically normal cells at diagnosis and in normal cells at complete remission. A literature search revealed two previous de novo AML-M5 cases of JT involving the 3q13.3-qter chromosomal segment and concomitant trisomy 8. In addition, a case with an unbalanced der(Y)t(Y;3)(q12;q13.31) and additional trisomy 8 was previously reported in a patient with de novo AML-M5. All of these cases had a dismal outcome. In the present case, and in the der(Y)t(Y;3) case, a concurrent submicroscopic deletion at 3q13.31 was observed affecting the TUSC7 gene. Duplication of 3q13.31-qter might be a non-random chromosomal abnormality with concomitant submicroscopic deletion at 3q13.31 occurring in rare cases of acute monocytic leukemia, being associated with adverse prognosis. The impact of shortened telomeres in forming the JT is reviewed. CI - Copyright (c) 2017 Elsevier Inc. All rights reserved. FAU - Kjeldsen, Eigil AU - Kjeldsen E AD - Cancercytogenetic Section, Hemodiagnostic Laboratory, Department of Hematology, Center for Cancer and Inflammation, Aarhus University Hospital, Tage Hansens Gade 2, Ent. 4A, DK-8000 Aarhus C, Denmark. Electronic address: Eigil.Kjeldsen@clin.au.dk. LA - eng PT - Case Reports PT - Journal Article DEP - 20170615 PL - Netherlands TA - Exp Mol Pathol JT - Experimental and molecular pathology JID - 0370711 RN - Chromosome 8, trisomy SB - IM MH - Aged MH - Chromosome Deletion MH - Chromosome Duplication MH - Chromosomes, Human, Pair 3/*genetics MH - Chromosomes, Human, Pair 8/genetics MH - Cloning, Molecular MH - Comparative Genomic Hybridization MH - DNA Copy Number Variations MH - Female MH - Humans MH - In Situ Hybridization, Fluorescence MH - Karyotyping MH - Leukemia, Monocytic, Acute/diagnosis/*genetics MH - Prognosis MH - *Translocation, Genetic MH - Trisomy/genetics OTO - NOTNLM OT - Acute leukemia OT - Copy number OT - Del(3)(q13.31q13.31) OT - High-resolution aCGH OT - TUSC7 OT - Telomere OT - Trisomy 8 EDAT- 2017/06/20 06:00 MHDA- 2017/08/26 06:00 CRDT- 2017/06/20 06:00 PHST- 2017/02/08 00:00 [received] PHST- 2017/05/03 00:00 [revised] PHST- 2017/06/13 00:00 [accepted] PHST- 2017/06/20 06:00 [pubmed] PHST- 2017/08/26 06:00 [medline] PHST- 2017/06/20 06:00 [entrez] AID - S0014-4800(17)30073-4 [pii] AID - 10.1016/j.yexmp.2017.06.002 [doi] PST - ppublish SO - Exp Mol Pathol. 2017 Aug;103(1):14-25. doi: 10.1016/j.yexmp.2017.06.002. Epub 2017 Jun 15.